Damping structure of unmanned sweeper

Abstract

The damping structure comprises a middle support, first hinge pieces, a left front axle, a right front axle and a damping mechanism, the middle support is connected to a chassis of the unmanned sweeper, the first hinge pieces are connected to the two ends of the middle support, the left front axle is hinged to the left first hinge piece, the right front axle is hinged to the right first hinge piece, and the damping mechanism is connected to the chassis of the unmanned sweeper. A damping mechanism is arranged between the left front axle and the chassis, a damping mechanism is arranged between the right front axle and the chassis, each damping mechanism comprises a sliding block, a second hinge piece and an elastic piece, the sliding blocks are arranged on the chassis in a sliding mode, the elastic pieces are arranged between the sliding blocks and the chassis, the sliding blocks are further hinged to the second hinge pieces, and the left front axle and the right front axle are hinged to the corresponding second hinge pieces. The front axle is separately designed into the left front axle and the right front axle, and the left front axle and the right front axle are independently connected with the middle support, so that the problems of large stress and frequent stress of a connecting structure caused by the fact that a left wheel and a right wheel are connected with the chassis through a single pin shaft are solved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned sweeper technology, and in particular to a shock absorption structure for an unmanned sweeper. Background Technology

[0002] Unmanned sweeping vehicles are a new type of sanitation equipment that utilizes artificial intelligence, sensor technology, and intelligent control systems to achieve autonomous navigation, path planning, waste identification, and cleaning. They can operate continuously, significantly improving cleaning efficiency, reducing labor costs, and optimizing cleaning tasks through an intelligent scheduling system, thus achieving rational resource allocation.

[0003] The Chinese Patent Database discloses a patent entitled "A Front Axle Shock Absorption Device for an Unmanned Sweeping Vehicle," application number: 2020105225469, application date: June 10, 2020. Section

[0023] of the specification discloses that: at the symmetrical points of the two sets of elastic buffer components 50, a set of horizontal hinge seats 40 is arranged. The horizontal hinge seat 40 includes an upper frame 41 and a lower frame 42. The two sets of frames are connected by a horizontal pin 43, thereby ensuring a good connection between the front axle 30 and the chassis 10.

[0004] The shortcomings of the above technical solution are: since the front axle and the chassis are only hinged together by a horizontal pin, the force on the left and right wheels connected to the front axle will be transmitted to the horizontal pin. Therefore, the horizontal pin is subjected to a large force, and the single pin connection structure is more likely to be damaged during long-term use or after being subjected to a severe impact. Utility Model Content

[0005] This application provides a shock absorption structure for an unmanned sweeper. By redesigning the connection structure between the left and right wheels of the front axle and the chassis, the left and right wheels are made to form an independent connection structure, thereby reducing the stress at the connection point and avoiding the technical problems of frequent and large stress on the single pin structure.

[0006] This application provides a shock absorption structure for an unmanned sweeper, including:

[0007] The center support is connected to the chassis;

[0008] The first hinge is connected to both ends of the central support;

[0009] The left front axle is hinged to the first hinge on the left side.

[0010] The right front axle is hinged to the first hinge on the right side.

[0011] The shock absorption mechanism is provided between the left front axle and the chassis, and between the right front axle and the chassis. The shock absorption mechanism includes a slider, a second hinge, and an elastic element. The slider is vertically slidably disposed below the chassis. The elastic element is disposed between the slider and the chassis and applies downward pressure to the slider. The slider is also hinged to the second hinge. The left front axle and the right front axle are hinged to the corresponding second hinge.

[0012] The beneficial effects of the above embodiments are as follows: by designing the front axle separately as the left front axle and the right front axle, the left front axle and the right front axle are independently connected to the center support, thereby avoiding the problem of large stress and frequent stress on the connection structure caused by the left wheel and the right wheel being connected to the chassis through a single pin shaft. Furthermore, the left front axle and the right front axle are connected through independent shock absorption mechanisms, which can better dampen the left front axle and the right front axle respectively.

[0013] Based on the above embodiments, the embodiments of this application can be further improved as follows:

[0014] In one embodiment of this application: the first hinge member has a first ball end, which is hinged to the corresponding left front axle or right front axle. The beneficial effect of this step is that the ball end enables a universal joint function.

[0015] In one embodiment of this application: the second hinge member has a second ball end A and a second ball end B, the second ball end A being hinged to the corresponding left front axle or the right front axle, and the second ball end B being hinged to the slider. The beneficial effect of this step is that it achieves a universal hinge function through the ball ends.

[0016] In one embodiment of this application, the shock absorption mechanism further includes a side support connected to the chassis, the slider being slidably disposed in the side support, and the elastic element being disposed in the side support. The advantage of this step is that the side support facilitates the assembly of the slider and the elastic element.

[0017] In one embodiment of this application, the device further includes a first dust cover and a second dust cover. The first dust cover houses the first hinge member, and the second dust cover houses the second hinge member. The beneficial effect of this step is that the first and second dust covers provide a good working environment for the first and second hinge members, thereby ensuring a good rotational connection between them. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of a vibration damping structure;

[0020] Figure 2 This is a partial structural diagram of the vibration damping structure.

[0021] Among them, 1 is the central support, 2 is the first hinge, 3 is the left front axle, 4 is the right front axle, 5 is the shock absorption mechanism, 501 is the slider, 502 is the second hinge, 503 is the elastic element, 504 is the side support, 505 is the slide groove, 506 is the pressure cover, 507 is the hole body, 6 is the chassis, 7 is the first connecting block, 8 is the second connecting block, 9 is the first dust cover, and 10 is the second dust cover. Detailed Implementation

[0022] In this application, unless otherwise expressly specified and limited, the terminology used should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of different terms in this utility model according to the specific circumstances, and the scope of the specific meaning should be limited to achieving the function of this application.

[0023] In the description of this application, it should be understood that the directional terms or positional relationships described are based on the orientation or positional relationships shown in the accompanying drawings, or based on the orientation or positional relationships in actual use, and are only for the purpose of facilitating the description of the contents of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] like Figure 1 , 2As shown, a shock-absorbing structure for an unmanned sweeper includes: a central support 1, a first hinge 2, a left front axle 3, a right front axle 4, and a shock-absorbing mechanism 5. The central support 1 is connected to the chassis 6 of the unmanned sweeper. The first hinge 2 is connected to both ends of the central support 1. The left front axle 3 is hinged to the left first hinge 2, and the right front axle 4 is hinged to the right first hinge 2. A shock-absorbing mechanism 5 is configured between the left front axle 3 and the chassis 6, and between the right front axle 4 and the chassis 6. The shock-absorbing mechanism 5 includes: a slider 501, a second hinge 502, and an elastic element 503. The slider 501 is vertically slidably disposed below the chassis 6. The elastic element 503 is disposed between the slider 501 and the chassis 6 and applies downward pressure to the slider 501. The slider 501 is also hinged to the second hinge 502. The left front axle 3 and the right front axle 4 are hinged to the corresponding second hinge 502.

[0025] In some embodiments of this application, such as Figure 1 As shown, the central support 1 includes a column and a crossbeam. The lower end of the column is connected to the middle position of the crossbeam, and the upper end of the column is connected to the base 6. The two ends of the crossbeam are respectively connected to the first hinge 2 with the axis set in the horizontal direction.

[0026] In some embodiments of this application, such as Figure 1 As shown, the first hinge 2 has a first ball end, which is hinged to the corresponding left front axle 3 or right front axle 4. The first hinge 2 is a single ball end rod, and the rod part of the first hinge 2 is fixed to the crossbeam. The connection method between the first hinge 2 and the left front axle 3 or right front axle 4 is the same. Taking the left front axle 3 as an example, the left front axle 3 is equipped with a first connecting block 7. The first connecting block 7 includes a first block A and a first block B that are connected to each other. A groove for hinged first ball end is opened between the first block A and the first block B. The first ball end is hinged in the groove. By hinged to the first connecting block 7, the function of universally hinged between the left front axle 3 and the crossbeam is realized.

[0027] In some embodiments of this application, such as Figure 2 As shown, the second hinge 502 has a second ball end A and a second ball end B. The second ball end A is hinged to the corresponding left front axle 3 or right front axle 4, and the second ball end B is hinged to the slider 501. The second hinge 502 is a double ball end rod. Since the connection method of the two damping mechanisms 5 is the same, the damping mechanism 5 on the left front axle 3 side is described as an example. The left front axle 3 is connected to a second connecting block 8. The second ball end A is universally hinged to the second connecting block 8, and the second ball end B is universally hinged to the slider 501 (the universal hinge structure of the second ball end A and the second ball end B is the same as the universal hinge method of the first ball end).

[0028] In some embodiments of this application, such as Figure 2As shown, the shock absorption mechanism 5 also includes: a side support 504, which is connected to the chassis 6; a slider 501 is slidably disposed in the side support 504; and an elastic element 503 is disposed in the side support 504. Taking the left front axle 3 side as an example, the upper end of the side support 504 is connected to the chassis 6, and the lower end face of the side support 504 is provided with a sliding groove 505. The slider 501 is slidably inserted into the sliding groove 505. The elastic element 503 is a cylindrical compression spring, and the elastic element 503 is inserted into the sliding groove 505. The lower end of the side support 504 is also connected to a pressure cap 506 that limits the slider 501 in the sliding groove 505. The pressure cap 506 is provided with a hole 507 corresponding to the second hinge 502. The hole 507 is a conical hole with the small end on top and the large end on the bottom. In this way, on the one hand, the contact area between the pressure cap 506 and the slider 501 can be increased, and on the other hand, interference between the second hinge 502 and the pressure cap 506 can be avoided.

[0029] In some embodiments of this application, such as Figure 1 As shown, the shock-absorbing structure also includes: a first dust cover 9 and a second dust cover 10. The first dust cover 9 houses the first hinge 2, and the second dust cover 10 houses the second hinge 502. Both the first dust cover 9 and the second dust cover 10 are telescopic dust covers, providing a good working environment for the first hinge 2 and the second hinge 502, thereby ensuring that the first hinge 2 and the second hinge 502 have good rotational connection function.

[0030] The shock absorption structure of this type of unmanned sweeper is designed by separating the front axles into a left front axle 3 and a right front axle 4, so that the left front axle 3 and the right front axle 4 are independently connected to the center support 1. This avoids the problem of large and frequent stress at the connection structure caused by the left wheel and the right wheel being connected to the chassis 6 by a single pin shaft. Furthermore, the left front axle 3 and the right front axle 4 are connected by an independent shock absorption mechanism 5, which can effectively dampen the left front axle 3 and the right front axle 4 respectively.

[0031] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A shock-absorbing structure for an unmanned sweeper, characterized in that, The utility model relates to a kind of suspension system, including: Middle support, connected to chassis; First articulation, connected to the both ends of the middle support; Left front axle, articulated with the first articulation on left side; Right front axle, articulated with the first articulation on right side; Damping mechanism, one of the damping mechanism is configured between the left front axle and the chassis, and between the right front axle and the chassis, the damping mechanism includes: slider, second articulation, elastic element, the slider is vertically slidingly arranged below the chassis, the elastic element is arranged between the slider and the chassis, the elastic element exerts downward pressure on the slider, the slider is also articulated with the second articulation, the left front axle, right front axle is articulated with corresponding second articulation.

2. The shock absorbing structure according to claim 1, characterized by The first articulation has first ball head end, and the first ball head end is articulated with corresponding left front axle or right front axle.

3. The shock absorbing structure of claim 1, wherein The second articulation has second ball head end A and second ball head end B, the second ball head end A is articulated with corresponding left front axle or right front axle, and the second ball head end B is articulated with the slider.

4. The shock absorbing structure of claim 1, wherein The damping mechanism further includes: edge support, the edge support is connected to the chassis, and the slider is slidingly arranged in the edge support, and the elastic element is arranged in the edge support.

5. The shock absorbing structure according to claim 4, characterized by Further including: First dust cover, second dust cover, the first dust cover covers the first articulation inside, and the second dust cover covers the second articulation inside.

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